Why does my light source not pass through my glass?
Here, try this setup. The active factor is the &quot;Is Camera Ray&quot; output of a Light Path node, used as a mix factor between the glass shader setup and a Transparent BSDF. I made the glass &quot;double-paned&quot; in my image so you can see the light go through both layers before hitting the back wall. I also included both a Spotlight and a point light to show both their lights and shadows going through. Lastly, as is usual for a transparent setup, make sure your blend modes are correct. See below: